Merge #512

512: Fix various Wformat-diag diagnostics r=philberty a=dkm

Fix warnings mainly coming from ` being used instead of %< and %>.

Also fixing occurences of :

```
../../gcc/rust/lex/rust-token.cc:126:40: warning: unquoted sequence of 2 consecutive punctuation characters ‘',’ in format [-Wformat-diag]
  126 |        "attempted to get string for '%s', which has no string. "
      |                                        ^~
../../gcc/rust/lex/rust-token.cc:127:39: warning: spurious trailing punctuation sequence ‘.’ in format [-Wformat-diag]
  127 |        "returning empty string instead.",
      |                                       ^
../../gcc/rust/lex/rust-token.cc:126:37: warning: unterminated quote character ‘'’ in format [-Wformat-diag]
  126 |        "attempted to get string for '%s', which has no string. "
      |                                     ^
```
and various occurences of :
```
../../gcc/rust/lex/rust-lex.cc:1326:11: warning: unquoted keyword ‘char’ in format [-Wformat-diag]
 1326 |     "byte char %<%c%> out of range", byte_char);
      |           ^~~~
```
Also using full word for arguments, integer, character, declaration, variable,
floting-point instead of args, int, char, decl, var, float when applicable.

Co-authored-by: Marc Poulhiès <dkm@kataplop.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/gcc/rust/backend/rust-compile-expr.h b/gcc/rust/backend/rust-compile-expr.h
index 09652f1..5a224e2 100644
--- a/gcc/rust/backend/rust-compile-expr.h
+++ b/gcc/rust/backend/rust-compile-expr.h
@@ -203,7 +203,7 @@ public:
 	      != 0)
 	    {
 	      rust_fatal_error (expr.get_locus (),
-				"bad float number in literal");
+				"bad floating-point number in literal");
 	      return;
 	    }