allow newline before dot for subscript as well, and add to tests

Author: ruby0x1

src/vm/wren_compiler.c

@@ -2378,6 +2378,8 @@ static void subscript(Compiler* compiler, bool canAssign)
   finishArgumentList(compiler, &signature);
   consume(compiler, TOKEN_RIGHT_BRACKET, "Expect ']' after arguments.");
 
+  allowLineBeforeDot(compiler);
+
   if (canAssign && match(compiler, TOKEN_EQ))
   {
     signature.type = SIG_SUBSCRIPT_SETTER;

test/language/chained_newline.wren

@@ -12,6 +12,11 @@ class Test {
     System.print("test2")
     return this
   }
+
+  [index] {
+    System.print("testSubscript")
+    return this
+  }
 }
 
 class Tester {
@@ -22,36 +27,48 @@ class Tester {
     //test local access
 
     test.
-      test0().  // expect: test0
-      test1().  // expect: test1
-      test2()   // expect: test2
+      test0().          // expect: test0
+      test1().          // expect: test1
+      test2()           // expect: test2
 
     test
-      .test0()  // expect: test0
-      .test1()  // expect: test1
-      .test2()  // expect: test2
+      .test0()          // expect: test0
+      .test1()          // expect: test1
+      .test2()          // expect: test2
 
     test
-      .test0()  // expect: test0
-      .test1(). // expect: test1
-      test2()   // expect: test2
+      .test0()          // expect: test0
+      .test1().         // expect: test1
+       test2()          // expect: test2
+
+    test[0]             // expect: testSubscript
+      .test0()          // expect: test0
+
+    test[0].            // expect: testSubscript
+      test0()           // expect: test0
 
     //test field access
 
     _test.
-      test0().  // expect: test0
-      test1().  // expect: test1
-      test2()   // expect: test2
+      test0().          // expect: test0
+      test1().          // expect: test1
+      test2()           // expect: test2
 
     _test
-      .test0()  // expect: test0
-      .test1()  // expect: test1
-      .test2()  // expect: test2
+      .test0()          // expect: test0
+      .test1()          // expect: test1
+      .test2()          // expect: test2
 
     _test
-      .test0(). // expect: test0
-       test1(). // expect: test1
-       test2()  // expect: test2
+      .test0().         // expect: test0
+       test1().         // expect: test1
+       test2()          // expect: test2
+
+    _test[0]            // expect: testSubscript
+      .test0()          // expect: test0
+
+    _test[0].           // expect: testSubscript
+      test0()           // expect: test0
 
   }
 
@@ -65,50 +82,70 @@ class Tester {
 var external = Tester.new()
 
 external.getter.
-  test0().  // expect: test0
-  test1().  // expect: test1
-  test2()   // expect: test2
+  test0().              // expect: test0
+  test1().              // expect: test1
+  test2()               // expect: test2
 
 external.getter
-  .test0()  // expect: test0
-  .test1()  // expect: test1
-  .test2()  // expect: test2
+  .test0()              // expect: test0
+  .test1()              // expect: test1
+  .test2()              // expect: test2
 
 external.getter.
-   test0()  // expect: test0
-  .test1()  // expect: test1
-  .test2()  // expect: test2
+   test0()              // expect: test0
+  .test1()              // expect: test1
+  .test2()              // expect: test2
+
+external.getter[0].     // expect: testSubscript
+   test0()              // expect: test0
+
+external.getter[0]      // expect: testSubscript
+   .test0()             // expect: test0
 
 external.method().
-  test0().  // expect: test0
-  test1().  // expect: test1
-  test2()   // expect: test2
+  test0().              // expect: test0
+  test1().              // expect: test1
+  test2()               // expect: test2
 
 external.method()
-  .test0()  // expect: test0
-  .test1()  // expect: test1
-  .test2()  // expect: test2
+  .test0()              // expect: test0
+  .test1()              // expect: test1
+  .test2()              // expect: test2
 
 external.method().
-  test0()   // expect: test0
-  .test1(). // expect: test1
-  test2()   // expect: test2
+  test0()               // expect: test0
+  .test1().             // expect: test1
+  test2()               // expect: test2
+
+external.method()[0].   // expect: testSubscript
+  test0()               // expect: test0
+
+external.method()[0]    // expect: testSubscript
+  .test0()              // expect: test0
+
 
 //regular access in module scope
 
 var other = Test.new()
 
 other.
-  test0(). // expect: test0
-  test1(). // expect: test1
-  test2()  // expect: test2
+  test0().              // expect: test0
+  test1().              // expect: test1
+  test2()               // expect: test2
 
 other
-  .test0() // expect: test0
-  .test1() // expect: test1
-  .test2() // expect: test2
+  .test0()              // expect: test0
+  .test1()              // expect: test1
+  .test2()              // expect: test2
 
 other
-  .test0(). // expect: test0
-   test1()  // expect: test1
-  .test2()  // expect: test2
+  .test0().             // expect: test0
+   test1()              // expect: test1
+  .test2()              // expect: test2
+
+
+other[0]                // expect: testSubscript
+  .test0()              // expect: test0
+
+other[0].               // expect: testSubscript
+  test0()               // expect: test0