Fix inner vs outer typeAnnotation ranges

Author: JamesHenry

lib/convert.js

@@ -526,7 +526,7 @@ module.exports = function convert(config) {
 
         }
 
-        case SyntaxKind.VariableDeclaration:
+        case SyntaxKind.VariableDeclaration: {
             Object.assign(result, {
                 type: AST_NODE_TYPES.VariableDeclarator,
                 id: convertChild(node.name),
@@ -536,8 +536,17 @@ module.exports = function convert(config) {
             if (node.type) {
                 result.id.typeAnnotation = convertTypeAnnotation(node.type);
                 result.id.range[1] = node.type.getEnd();
+
+                const identifierEnd = node.name.getEnd();
+                const numCharsBetweenTypeAndIdentifier = node.type.getStart() - (node.type.getFullStart() - identifierEnd - ":".length) - identifierEnd;
+
+                result.id.typeAnnotation.range = [
+                    result.id.typeAnnotation.range[0] - numCharsBetweenTypeAndIdentifier,
+                    result.id.typeAnnotation.range[1]
+                ];
             }
             break;
+        }
 
         case SyntaxKind.VariableStatement:
             Object.assign(result, {

tests/fixtures/typescript/basics/variable-declaration-type-annotation-spacing.src.ts

@@ -0,0 +1 @@
+let x   :      string;