Fix crash in invocationErrorRecovery function (#1944)

Author: ahejlsberg

internal/checker/checker.go

@@ -9755,7 +9755,7 @@ func (c *Checker) invocationErrorRecovery(apparentType *Type, kind SignatureKind
 	// Create a diagnostic on the originating import if possible onto which we can attach a quickfix
 	//  An import call expression cannot be rewritten into another form to correct the error - the only solution is to use `.default` at the use-site
 	if importNode != nil && !ast.IsImportCall(importNode) {
-		sigs := c.getSignaturesOfType(c.getTypeOfSymbol(c.valueSymbolLinks.Get(apparentType.symbol).target), kind)
+		sigs := c.getSignaturesOfType(c.getTypeOfSymbol(c.exportTypeLinks.Get(apparentType.symbol).target), kind)
 		if len(sigs) == 0 {
 			return
 		}

testdata/baselines/reference/compiler/invocationErrorRecovery.errors.txt

@@ -0,0 +1,16 @@
+index.ts(2,1): error TS2349: This expression is not callable.
+  Type '{ default: () => void; }' has no call signatures.
+
+
+==== foo.d.ts (0 errors) ====
+    declare function foo(): void;
+    declare namespace foo {}
+    export = foo;
+==== index.ts (1 errors) ====
+    import * as foo from "./foo";
+    foo()
+    ~~~
+!!! error TS2349: This expression is not callable.
+!!! error TS2349:   Type '{ default: () => void; }' has no call signatures.
+!!! related TS7038 index.ts:1:1: Type originates at this import. A namespace-style import cannot be called or constructed, and will cause a failure at runtime. Consider using a default import or import require here instead.
+    

testdata/baselines/reference/compiler/invocationErrorRecovery.symbols

@@ -0,0 +1,19 @@
+//// [tests/cases/compiler/invocationErrorRecovery.ts] ////
+
+=== foo.d.ts ===
+declare function foo(): void;
+>foo : Symbol(foo, Decl(foo.d.ts, 0, 0), Decl(foo.d.ts, 0, 29))
+
+declare namespace foo {}
+>foo : Symbol(foo, Decl(foo.d.ts, 0, 0), Decl(foo.d.ts, 0, 29))
+
+export = foo;
+>foo : Symbol(foo, Decl(foo.d.ts, 0, 0), Decl(foo.d.ts, 0, 29))
+
+=== index.ts ===
+import * as foo from "./foo";
+>foo : Symbol(foo, Decl(index.ts, 0, 6))
+
+foo()
+>foo : Symbol(foo, Decl(index.ts, 0, 6))
+

testdata/baselines/reference/compiler/invocationErrorRecovery.types

@@ -0,0 +1,18 @@
+//// [tests/cases/compiler/invocationErrorRecovery.ts] ////
+
+=== foo.d.ts ===
+declare function foo(): void;
+>foo : () => void
+
+declare namespace foo {}
+export = foo;
+>foo : () => void
+
+=== index.ts ===
+import * as foo from "./foo";
+>foo : { default: () => void; }
+
+foo()
+>foo() : any
+>foo : { default: () => void; }
+

testdata/tests/cases/compiler/invocationErrorRecovery.ts

@@ -0,0 +1,11 @@
+// @module: nodenext
+// @target: esnext
+// @strict: true
+// @noEmit: true
+// @filename: foo.d.ts
+declare function foo(): void;
+declare namespace foo {}
+export = foo;
+// @filename: index.ts
+import * as foo from "./foo";
+foo()