[OpenMP] Set pragma start loc to `#pragma` loc
This patch adjusts `PragmaOpenMPHandler` to set the location of
`tok::annot_pragma_openmp` to the `#pragma` location instead of the
`omp` location so that the former becomes the start location of the
OpenMP AST node. This can be useful when, for example, rewriting a
directive using Clang's Rewrite facility. Most of this patch updates
tests for changes to locations in diagnostics and `-ast-dump` output.
Reviewed By: ABataev, lebedev.ri, Meinersbur, aaron.ballman
Differential Revision: https://reviews.llvm.org/D61509
llvm-svn: 361867
diff --git a/clang/test/AST/ast-dump-openmp-taskwait.c b/clang/test/AST/ast-dump-openmp-taskwait.c
index 3e3e047..61831ef 100644
--- a/clang/test/AST/ast-dump-openmp-taskwait.c
+++ b/clang/test/AST/ast-dump-openmp-taskwait.c
@@ -7,4 +7,4 @@
// CHECK: TranslationUnitDecl {{.*}} <<invalid sloc>> <invalid sloc>
// CHECK: `-FunctionDecl {{.*}} <{{.*}}ast-dump-openmp-taskwait.c:3:1, line:5:1> line:3:6 test 'void ()'
// CHECK-NEXT: `-CompoundStmt {{.*}} <col:13, line:5:1>
-// CHECK-NEXT: `-OMPTaskwaitDirective {{.*}} <line:4:9, col:21> openmp_standalone_directive
+// CHECK-NEXT: `-OMPTaskwaitDirective {{.*}} <line:4:1, col:21> openmp_standalone_directive
