allow line termination prior to the with keyword

src/compiler/parser.ts

@@ -8270,7 +8270,7 @@ namespace Parser {
         const moduleSpecifier = parseModuleSpecifier();
 
         let attributes: ImportAttributes | undefined;
-        if (token() === SyntaxKind.WithKeyword && !scanner.hasPrecedingLineBreak()) {
+        if (token() === SyntaxKind.WithKeyword) {
             attributes = parseImportAttributes();
         }
 
@@ -8536,7 +8536,7 @@ namespace Parser {
                 moduleSpecifier = parseModuleSpecifier();
             }
         }
-        if (moduleSpecifier && token() === SyntaxKind.WithKeyword && !scanner.hasPrecedingLineBreak()) {
+        if (moduleSpecifier && token() === SyntaxKind.WithKeyword) {
             attributes = parseImportAttributes();
         }
         parseSemicolon();

tests/baselines/reference/importAttributes8.js

@@ -0,0 +1,22 @@
+//// [tests/cases/conformance/importAttributes/importAttributes8.ts] ////
+
+//// [a.ts]
+export default {
+    a: "a",
+    b: "b",
+    1: "1",
+}
+
+//// [b.ts]
+import a from "./a"
+with { a: "a", "b": "b", 1: "1" }; // ok
+
+
+//// [a.js]
+export default {
+    a: "a",
+    b: "b",
+    1: "1",
+};
+//// [b.js]
+export {};

tests/baselines/reference/importAttributes8.symbols

@@ -0,0 +1,20 @@
+//// [tests/cases/conformance/importAttributes/importAttributes8.ts] ////
+
+=== /a.ts ===
+export default {
+    a: "a",
+>a : Symbol(a, Decl(a.ts, 0, 16))
+
+    b: "b",
+>b : Symbol(b, Decl(a.ts, 1, 11))
+
+    1: "1",
+>1 : Symbol(1, Decl(a.ts, 2, 11))
+}
+
+=== /b.ts ===
+import a from "./a"
+>a : Symbol(a, Decl(b.ts, 0, 6))
+
+with { a: "a", "b": "b", 1: "1" }; // ok
+

tests/baselines/reference/importAttributes8.types

@@ -0,0 +1,26 @@
+//// [tests/cases/conformance/importAttributes/importAttributes8.ts] ////
+
+=== /a.ts ===
+export default {
+>{    a: "a",    b: "b",    1: "1",} : { a: string; b: string; 1: string; }
+
+    a: "a",
+>a : string
+>"a" : "a"
+
+    b: "b",
+>b : string
+>"b" : "b"
+
+    1: "1",
+>1 : string
+>"1" : "1"
+}
+
+=== /b.ts ===
+import a from "./a"
+>a : { a: string; b: string; 1: string; }
+
+with { a: "a", "b": "b", 1: "1" }; // ok
+>a : error
+

tests/cases/conformance/importAttributes/importAttributes8.ts

@@ -0,0 +1,13 @@
+// @module: esnext
+// @lib: es2015
+
+// @filename: /a.ts
+export default {
+    a: "a",
+    b: "b",
+    1: "1",
+}
+
+// @filename: /b.ts
+import a from "./a"
+with { a: "a", "b": "b", 1: "1" }; // ok