[cfe-commits] Patch - Add fix-it hint for missing case keyword within a switch scope

[Richard Trieu]

When a valid expression is followed by a colon inside a switch scope,
suggest a fix-it hint to insert a case before the expression.

int f1(int i) {
 switch (i) {
   0: return 1;
   default: return 0;
 }
}

case.cc:3:4: error: expected 'case' keyword before expression
   0: return 1;
   ^
   case
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