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

This reverts commit http://reviews.llvm.org/rL265003. After some
thoughts decided to emit errors here.

llvm-svn: 265119
diff --git a/clang/test/OpenMP/sections_misc_messages.c b/clang/test/OpenMP/sections_misc_messages.c
index 5d18a9c..da20aa1 100644
--- a/clang/test/OpenMP/sections_misc_messages.c
+++ b/clang/test/OpenMP/sections_misc_messages.c
@@ -122,13 +122,13 @@
   }
 #pragma omp parallel
 // expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
-// expected-error@+1 {{expected expression}}
+// expected-error@+1 2 {{expected expression}}
 #pragma omp sections private(,
   {
     foo();
   }
 #pragma omp parallel
-// expected-error@+1 {{expected expression}}
+// expected-error@+1 2 {{expected expression}}
 #pragma omp sections private(, )
   {
     foo();
@@ -182,13 +182,13 @@
 
 #pragma omp parallel
 // expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
-// expected-error@+1 {{expected expression}}
+// expected-error@+1 2 {{expected expression}}
 #pragma omp sections lastprivate(,
   {
     foo();
   }
 #pragma omp parallel
-// expected-error@+1 {{expected expression}}
+// expected-error@+1 2 {{expected expression}}
 #pragma omp sections lastprivate(, )
   {
     foo();
@@ -242,13 +242,13 @@
 
 #pragma omp parallel
 // expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
-// expected-error@+1 {{expected expression}}
+// expected-error@+1 2 {{expected expression}}
 #pragma omp sections firstprivate(,
   {
     foo();
   }
 #pragma omp parallel
-// expected-error@+1 {{expected expression}}
+// expected-error@+1 2 {{expected expression}}
 #pragma omp sections firstprivate(, )
   {
     foo();