Tweak error recovery for missing semicolon after decl. For this:

Tweak error recovery for missing semicolon after decl.  For this:

void foo() {
  int x
  if (x) {
  }
}

We now emit:

a.c:5:3: error: parse error
  if (x) {
  ^
1 diagnostic generated.

instead of:

a.c:5:3: error: parse error
  if (x) {
  ^
a.c:9:1: error: expected '}'

^
2 diagnostics generated.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@41243 91177308-0d34-0410-b5e6-96231b3b80d8