[OPENMP] Allow skip expression after comma in clauses with lists.

Compatibility fix for better compatibility with the existing software.

llvm-svn: 265003
diff --git a/clang/test/OpenMP/for_misc_messages.c b/clang/test/OpenMP/for_misc_messages.c
index 0a7cdf8..77d57e610 100644
--- a/clang/test/OpenMP/for_misc_messages.c
+++ b/clang/test/OpenMP/for_misc_messages.c
@@ -211,12 +211,12 @@
     ;
 #pragma omp parallel
 // expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
-// expected-error@+1 2 {{expected expression}}
+// expected-error@+1 {{expected expression}}
 #pragma omp for private(,
   for (i = 0; i < 16; ++i)
     ;
 #pragma omp parallel
-// expected-error@+1 2 {{expected expression}}
+// expected-error@+1 {{expected expression}}
 #pragma omp for private(, )
   for (i = 0; i < 16; ++i)
     ;
@@ -263,12 +263,12 @@
 
 #pragma omp parallel
 // expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
-// expected-error@+1 2 {{expected expression}}
+// expected-error@+1 {{expected expression}}
 #pragma omp for lastprivate(,
   for (i = 0; i < 16; ++i)
     ;
 #pragma omp parallel
-// expected-error@+1 2 {{expected expression}}
+// expected-error@+1 {{expected expression}}
 #pragma omp for lastprivate(, )
   for (i = 0; i < 16; ++i)
     ;
@@ -314,12 +314,12 @@
 
 #pragma omp parallel
 // expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
-// expected-error@+1 2 {{expected expression}}
+// expected-error@+1 {{expected expression}}
 #pragma omp for firstprivate(,
   for (i = 0; i < 16; ++i)
     ;
 #pragma omp parallel
-// expected-error@+1 2 {{expected expression}}
+// expected-error@+1 {{expected expression}}
 #pragma omp for firstprivate(, )
   for (i = 0; i < 16; ++i)
     ;