set value declaration for ambient declarations in javascript to avoid crashes in checker

Author: a-tarasyuk

src/compiler/utilities.ts

@@ -3531,7 +3531,7 @@ export function isSpecialPropertyDeclaration(expr: PropertyAccessExpression | El
 export function setValueDeclaration(symbol: Symbol, node: Declaration): void {
     const { valueDeclaration } = symbol;
     if (!valueDeclaration ||
-        !(node.flags & NodeFlags.Ambient && !(valueDeclaration.flags & NodeFlags.Ambient)) &&
+        !(node.flags & NodeFlags.Ambient && !isInJSFile(node) && !(valueDeclaration.flags & NodeFlags.Ambient)) &&
         (isAssignmentDeclaration(valueDeclaration) && !isAssignmentDeclaration(node)) ||
         (valueDeclaration.kind !== node.kind && isEffectiveModuleDeclaration(valueDeclaration))) {
         // other kinds of value declarations take precedence over modules and assignment declarations