[SILGen] Rename loopDest and endDest to continueDest and breakDest to make more sense to the reader.

Author: simanerush

lib/SILGen/SILGenStmt.cpp

@@ -1253,8 +1253,8 @@ void StmtEmitter::visitForEachStmt(ForEachStmt *S) {
         PackType::get(SGF.getASTContext(), expansion->getType())
             ->getCanonicalType());
 
-    JumpDest loopDest = createJumpDest(S->getBody());
-    JumpDest endDest = createJumpDest(S->getBody());
+    JumpDest continueDest = createJumpDest(S->getBody());
+    JumpDest breakDest = createJumpDest(S->getBody());
 
     SGF.emitDynamicPackLoop(
         SILLocation(expansion), formalPackType, 0,
@@ -1263,20 +1263,20 @@ void StmtEmitter::visitForEachStmt(ForEachStmt *S) {
             SILValue packIndex) {
           Scope innerForScope(SGF.Cleanups, CleanupLocation(S->getBody()));
           auto letValueInit =
-              SGF.emitPatternBindingInitialization(S->getPattern(), loopDest);
+              SGF.emitPatternBindingInitialization(S->getPattern(), continueDest);
 
           SGF.emitExprInto(expansion->getPatternExpr(), letValueInit.get());
 
           // Set the destinations for 'break' and 'continue'.
-          SGF.BreakContinueDestStack.push_back({S, endDest, loopDest});
+          SGF.BreakContinueDestStack.push_back({S, breakDest, continueDest});
           visit(S->getBody());
           SGF.BreakContinueDestStack.pop_back();
 
           return;
         },
-        loopDest.getBlock());
+        continueDest.getBlock());
 
-    emitOrDeleteBlock(SGF, endDest, S);
+    emitOrDeleteBlock(SGF, breakDest, S);
 
     return;
   }