interpreter: report FeatureNew for kwargs to project()

We need to know the project minimum version before evaluating the rest
of the function. There's three basic approaches:
- try to set it inside KwargInfo
- just run a minimal version of func_project for this, then load
  everything after
- drop down to the AST and set it before anything else

In order to handle FeatureNew emitted by a FunctionNode evaluated
before project() due to being inlined, such as `version: run_command()`,
only option 3 suffices, the rest all happen way too late. Since we have
just added AST handling support for erroring out, we can do that to set
the version as well.

2 files changed, 9 insertions, 1 deletions

diff --git a/test cases/common/33 run program/meson.build b/test cases/common/33 run program/meson.build
index aa0a1d6..2257d93 100644
--- a/test cases/common/33 run program/meson.build
+++ b/test cases/common/33 run program/meson.build
@@ -1,4 +1,4 @@
-project('run command', version : run_command('get-version.py', check : true).stdout().strip())
+project('run command', version : run_command('get-version.py', check : true).stdout().strip(), meson_version: '>=0.1.0')
 
 if build_machine.system() == 'windows'
   c = run_command('cmd', '/c', 'echo', 'hello', check: false)
diff --git a/test cases/common/33 run program/test.json b/test cases/common/33 run program/test.json
new file mode 100644
index 0000000..da8f128
--- /dev/null
+++ b/test cases/common/33 run program/test.json
@@ -0,0 +1,8 @@
+{
+  "stdout": [
+    {
+      "line": "test cases/common/33 run program/meson.build:1: WARNING: Project targets '>=0.1.0' but uses feature introduced in '0.47.0': check arg in run_command.",
+      "comment": "This triggers on line 1 -- the line with the project() function"
+    }
+  ]
+}