[gdb/testsuite] Use $gdb_test_file_name in gdb.dwarf2

In f.i. gdb.dwarf2/dw2-line-number-zero.exp we find:
...
    verbose "Skipping dw2-line-number-zero test."
...

Make the skip messages use the gdb_test_file_name variable, to reduce the
amount of changes that needs to be made when coping a test-case.

Tested on x86_64-linux.

gdb/testsuite/ChangeLog:

2020-10-20  Tom de Vries  <tdevries@suse.de>

	* gdb.dwarf2/dw2-error.exp: Use $gdb_test_file_name.
	* gdb.dwarf2/dw2-line-number-zero.exp: Same.
	* gdb.dwarf2/dw2-main-no-line-number.exp: Same.
	* gdb.dwarf2/dw2-ranges-base.exp: Same.
	* gdb.dwarf2/dw2-ranges.exp: Same.
	* gdb.dwarf2/dw2-vendor-extended-opcode.exp: Same.
	* gdb.dwarf2/var-access.exp: Same.

8 files changed, 22 insertions, 14 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 0a22f67..8772b80 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,13 @@
+2020-10-20  Tom de Vries  <tdevries@suse.de>
+
+	* gdb.dwarf2/dw2-error.exp: Use $gdb_test_file_name.
+	* gdb.dwarf2/dw2-line-number-zero.exp: Same.
+	* gdb.dwarf2/dw2-main-no-line-number.exp: Same.
+	* gdb.dwarf2/dw2-ranges-base.exp: Same.
+	* gdb.dwarf2/dw2-ranges.exp: Same.
+	* gdb.dwarf2/dw2-vendor-extended-opcode.exp: Same.
+	* gdb.dwarf2/var-access.exp: Same.
+
 2020-10-19  Tom Tromey  <tromey@adacore.com>
 
 	PR tui/26719
diff --git a/gdb/testsuite/gdb.dwarf2/dw2-error.exp b/gdb/testsuite/gdb.dwarf2/dw2-error.exp
index 53d6339..e698752 100644
--- a/gdb/testsuite/gdb.dwarf2/dw2-error.exp
+++ b/gdb/testsuite/gdb.dwarf2/dw2-error.exp
@@ -23,7 +23,7 @@ if {![dwarf2_support]} {
 standard_testfile .S
 
 if { ![istarget "x86_64-*-*"] || ![is_lp64_target] } {
-    verbose "Skipping $testfile.exp"
+    verbose "Skipping $gdb_test_file_name."
     return
 }
 
diff --git a/gdb/testsuite/gdb.dwarf2/dw2-line-number-zero.exp b/gdb/testsuite/gdb.dwarf2/dw2-line-number-zero.exp
index 164397e..1d9f01a 100644
--- a/gdb/testsuite/gdb.dwarf2/dw2-line-number-zero.exp
+++ b/gdb/testsuite/gdb.dwarf2/dw2-line-number-zero.exp
@@ -16,7 +16,7 @@ load_lib dwarf.exp
 
 # This test can only be run on targets which support DWARF-2 and use gas.
 if {![dwarf2_support]} {
-    verbose "Skipping dw2-line-number-zero test."
+    verbose "Skipping $gdb_test_file_name."
     return 0
 }
 
@@ -25,7 +25,7 @@ if [get_compiler_info] {
     return -1
 }
 if !$gcc_compiled {
-    verbose "Skipping dw2-line-number-zero test."
+    verbose "Skipping $gdb_test_file_name."
     return 0
 }
 
diff --git a/gdb/testsuite/gdb.dwarf2/dw2-main-no-line-number.exp b/gdb/testsuite/gdb.dwarf2/dw2-main-no-line-number.exp
index 1f62d0c..965cc43 100644
--- a/gdb/testsuite/gdb.dwarf2/dw2-main-no-line-number.exp
+++ b/gdb/testsuite/gdb.dwarf2/dw2-main-no-line-number.exp
@@ -18,11 +18,9 @@
 
 load_lib dwarf.exp
 
-set testname [file rootname [file tail [info script]]]
-
 # This test can only be run on targets which support DWARF-2 and use gas.
 if {![dwarf2_support]} {
-    verbose "Skipping $testname test."
+    verbose "Skipping $gdb_test_file_name."
     return 0
 }
 
@@ -31,7 +29,7 @@ if [get_compiler_info] {
     return -1
 }
 if !$gcc_compiled {
-    verbose "Skipping $testname test."
+    verbose "Skipping $gdb_test_file_name."
     return 0
 }
 
diff --git a/gdb/testsuite/gdb.dwarf2/dw2-ranges-base.exp b/gdb/testsuite/gdb.dwarf2/dw2-ranges-base.exp
index 0d363b1..3f03fa6 100644
--- a/gdb/testsuite/gdb.dwarf2/dw2-ranges-base.exp
+++ b/gdb/testsuite/gdb.dwarf2/dw2-ranges-base.exp
@@ -19,7 +19,7 @@ load_lib dwarf.exp
 
 # This test can only be run on targets which support DWARF-2 and use gas.
 if {![dwarf2_support]} {
-    verbose "Skipping DW_AT_ranges test."
+    verbose "Skipping $gdb_test_file_name."
     return 0
 }
 
@@ -28,7 +28,7 @@ if [get_compiler_info] {
     return -1
 }
 if !$gcc_compiled {
-    verbose "Skipping DW_AT_ranges test."
+    verbose "Skipping $gdb_test_file_name."
     return 0
 }
 
diff --git a/gdb/testsuite/gdb.dwarf2/dw2-ranges.exp b/gdb/testsuite/gdb.dwarf2/dw2-ranges.exp
index adddc93..c15b060 100644
--- a/gdb/testsuite/gdb.dwarf2/dw2-ranges.exp
+++ b/gdb/testsuite/gdb.dwarf2/dw2-ranges.exp
@@ -19,7 +19,7 @@ load_lib dwarf.exp
 
 # This test can only be run on targets which support DWARF-2 and use gas.
 if {![dwarf2_support]} {
-    verbose "Skipping DW_AT_ranges test."
+    verbose "Skipping $gdb_test_file_name."
     return 0  
 }
 
@@ -28,7 +28,7 @@ if [get_compiler_info] {
     return -1
 }
 if !$gcc_compiled {
-    verbose "Skipping DW_AT_ranges test."
+    verbose "Skipping $gdb_test_file_name."
     return 0  
 }
 
diff --git a/gdb/testsuite/gdb.dwarf2/dw2-vendor-extended-opcode.exp b/gdb/testsuite/gdb.dwarf2/dw2-vendor-extended-opcode.exp
index 08f0e29..d2861d7 100644
--- a/gdb/testsuite/gdb.dwarf2/dw2-vendor-extended-opcode.exp
+++ b/gdb/testsuite/gdb.dwarf2/dw2-vendor-extended-opcode.exp
@@ -16,7 +16,7 @@ load_lib dwarf.exp
 
 # This test can only be run on targets which support DWARF-2 and use gas.
 if {![dwarf2_support]} {
-    verbose "Skipping dw2-vendor-extended-opcode test."
+    verbose "Skipping $gdb_test_file_name."
     return 0
 }
 
@@ -25,7 +25,7 @@ if [get_compiler_info] {
     return -1
 }
 if !$gcc_compiled {
-    verbose "Skipping dw2-vendor-extended-opcode test."
+    verbose "Skipping $gdb_test_file_name."
     return 0
 }
 
diff --git a/gdb/testsuite/gdb.dwarf2/var-access.exp b/gdb/testsuite/gdb.dwarf2/var-access.exp
index a669b4c..c0d21ba 100644
--- a/gdb/testsuite/gdb.dwarf2/var-access.exp
+++ b/gdb/testsuite/gdb.dwarf2/var-access.exp
@@ -40,7 +40,7 @@ if { [is_aarch64_target] } {
 } elseif { [is_amd64_regs_target] } {
     set regname {rax rdx}
 } else {
-    verbose "Skipping tests for accessing DWARF-described variables."
+    verbose "Skipping $gdb_test_file_name."
     return
 }