Remove isSemicolon (fix #200)

tests/baselines/reference/asiAmbientFunctionDeclaration.js

@@ -0,0 +1,4 @@
+//// [asiAmbientFunctionDeclaration.ts]
+declare function foo()
+
+//// [asiAmbientFunctionDeclaration.js]

tests/baselines/reference/asiBreak.js

@@ -0,0 +1,6 @@
+//// [asiBreak.ts]
+while (true) break
+
+//// [asiBreak.js]
+while (true)
+    break;

tests/baselines/reference/asiContinue.js

@@ -0,0 +1,6 @@
+//// [asiContinue.ts]
+while (true) continue
+
+//// [asiContinue.js]
+while (true)
+    continue;

tests/baselines/reference/asiReturn.errors.txt

@@ -0,0 +1,5 @@
+==== tests/cases/compiler/asiReturn.ts (1 errors) ====
+    // This should be an error for using a return outside a function, but ASI should work properly
+    return
+    ~~~~~~
+!!! A 'return' statement can only be used within a function body.

tests/cases/compiler/asiAmbientFunctionDeclaration.ts

@@ -0,0 +1 @@
+declare function foo()

tests/cases/compiler/asiBreak.ts

@@ -0,0 +1 @@
+while (true) break

tests/cases/compiler/asiContinue.ts

@@ -0,0 +1 @@
+while (true) continue

tests/cases/compiler/asiReturn.ts

@@ -0,0 +1,2 @@
+// This should be an error for using a return outside a function, but ASI should work properly
+return