Add extra tests for type and value symbol merging (#55387)

tests/baselines/reference/typeValueMerge1.symbols

@@ -0,0 +1,33 @@
+//// [tests/cases/conformance/externalModules/typeValueMerge1.ts] ////
+
+=== other.ts ===
+export type A = string;
+>A : Symbol(A, Decl(other.ts, 0, 0), Decl(other.ts, 2, 8))
+
+function A() {}
+>A : Symbol(A, Decl(other.ts, 0, 23), Decl(other.ts, 0, 0))
+
+export { A };
+>A : Symbol(A, Decl(other.ts, 0, 0), Decl(other.ts, 2, 8))
+
+export type B = string;
+>B : Symbol(B, Decl(other.ts, 2, 13), Decl(other.ts, 6, 8))
+
+var B = 10;
+>B : Symbol(B, Decl(other.ts, 2, 13), Decl(other.ts, 5, 3))
+
+export { B };
+>B : Symbol(B, Decl(other.ts, 2, 13), Decl(other.ts, 6, 8))
+
+=== main.ts ===
+import { A, B } from "./other";
+>A : Symbol(A, Decl(main.ts, 0, 8))
+>B : Symbol(B, Decl(main.ts, 0, 11))
+
+A();
+>A : Symbol(A, Decl(main.ts, 0, 8))
+
+export const C = B;
+>C : Symbol(C, Decl(main.ts, 4, 12))
+>B : Symbol(B, Decl(main.ts, 0, 11))
+

tests/baselines/reference/typeValueMerge1.types

@@ -0,0 +1,35 @@
+//// [tests/cases/conformance/externalModules/typeValueMerge1.ts] ////
+
+=== other.ts ===
+export type A = string;
+>A : string
+
+function A() {}
+>A : () => void
+
+export { A };
+>A : () => void
+
+export type B = string;
+>B : string
+
+var B = 10;
+>B : number
+>10 : 10
+
+export { B };
+>B : number
+
+=== main.ts ===
+import { A, B } from "./other";
+>A : () => void
+>B : number
+
+A();
+>A() : void
+>A : () => void
+
+export const C = B;
+>C : number
+>B : number
+

tests/cases/conformance/externalModules/typeValueMerge1.ts

@@ -0,0 +1,17 @@
+// @noEmit: true
+
+// @Filename: other.ts
+export type A = string;
+function A() {}
+export { A };
+
+export type B = string;
+var B = 10;
+export { B };
+
+// @Filename: main.ts
+import { A, B } from "./other";
+
+A();
+
+export const C = B;