[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/taskloop_misc_messages.c b/clang/test/OpenMP/taskloop_misc_messages.c
index f9e084e..21366e6 100644
--- a/clang/test/OpenMP/taskloop_misc_messages.c
+++ b/clang/test/OpenMP/taskloop_misc_messages.c
@@ -206,12 +206,12 @@
     ;
 #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 taskloop private(,
   for (i = 0; i < 16; ++i)
     ;
 #pragma omp parallel
-// expected-error@+1 2 {{expected expression}}
+// expected-error@+1 {{expected expression}}
 #pragma omp taskloop private(, )
   for (i = 0; i < 16; ++i)
     ;
@@ -258,12 +258,12 @@
 
 #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 taskloop lastprivate(,
   for (i = 0; i < 16; ++i)
     ;
 #pragma omp parallel
-// expected-error@+1 2 {{expected expression}}
+// expected-error@+1 {{expected expression}}
 #pragma omp taskloop lastprivate(, )
   for (i = 0; i < 16; ++i)
     ;
@@ -309,12 +309,12 @@
 
 #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 taskloop firstprivate(,
   for (i = 0; i < 16; ++i)
     ;
 #pragma omp parallel
-// expected-error@+1 2 {{expected expression}}
+// expected-error@+1 {{expected expression}}
 #pragma omp taskloop firstprivate(, )
   for (i = 0; i < 16; ++i)
     ;