Fix-ups around formatting and assertions

Author: RyanCavanaugh

src/services/formatting/formatting.ts

@@ -624,10 +624,11 @@ namespace ts.formatting {
                     return inheritedIndentation;
                 }
 
-                if (isToken(child)) {
+                // JSX text shouldn't affect indenting
+                if (isToken(child) && child.kind !== SyntaxKind.JsxText) {
                     // if child node is a token, it does not impact indentation, proceed it using parent indentation scope rules
                     const tokenInfo = formattingScanner.readTokenInfo(child);
-                    Debug.assert(tokenInfo.token.end === child.end);
+                    Debug.assert(tokenInfo.token.end === child.end, "Token end is child end");
                     consumeTokenAndAdvanceScanner(tokenInfo, node, parentDynamicIndentation, child);
                     return inheritedIndentation;
                 }

src/services/formatting/formattingScanner.ts

@@ -31,7 +31,7 @@ namespace ts.formatting {
     }
 
     export function getFormattingScanner(sourceFile: SourceFile, startPos: number, endPos: number): FormattingScanner {
-        Debug.assert(scanner === undefined);
+        Debug.assert(scanner === undefined, "Scanner should be undefined");
         scanner = sourceFile.languageVariant === LanguageVariant.JSX ? jsxScanner : standardScanner;
 
         scanner.setText(sourceFile.text);
@@ -62,7 +62,7 @@ namespace ts.formatting {
         };
 
         function advance(): void {
-            Debug.assert(scanner !== undefined);
+            Debug.assert(scanner !== undefined, "Scanner should be present");
 
             lastTokenInfo = undefined;
             const isStarted = scanner.getStartPos() !== startPos;

src/services/formatting/rulesMap.ts

@@ -35,8 +35,8 @@ namespace ts.formatting {
         }
 
         private GetRuleBucketIndex(row: number, column: number): number {
+            Debug.assert(row <= SyntaxKind.LastKeyword && column <= SyntaxKind.LastKeyword, "Must compute formatting context from tokens");
             const rulesBucketIndex = (row * this.mapRowLength) + column;
-            // Debug.Assert(rulesBucketIndex < this.map.Length, "Trying to access an index outside the array.");
             return rulesBucketIndex;
         }
 

src/services/utilities.ts

@@ -750,7 +750,7 @@ namespace ts {
         return find(startNode || sourceFile);
 
         function findRightmostToken(n: Node): Node {
-            if (isToken(n) || n.kind === SyntaxKind.JsxText) {
+            if (isToken(n)) {
                 return n;
             }
 
@@ -761,7 +761,7 @@ namespace ts {
         }
 
         function find(n: Node): Node {
-            if (isToken(n) || n.kind === SyntaxKind.JsxText) {
+            if (isToken(n)) {
                 return n;
             }