Function isTypeParameterPossiblyReferenced

test/fixtures/snapshot/typescript.js:63456–63488

(tp, node)

                node.parent.kind === 200 /* SyntaxKind.ImportType */ && node.parent.typeArguments && node === node.parent.qualifier);
        }
        function isTypeParameterPossiblyReferenced(tp, node) {
            // If the type parameter doesn't have exactly one declaration, if there are invening statement blocks
            // between the node and the type parameter declaration, if the node contains actual references to the
            // type parameter, or if the node contains type queries, we consider the type parameter possibly referenced.
            if (tp.symbol && tp.symbol.declarations && tp.symbol.declarations.length === 1) {
                var container = tp.symbol.declarations[0].parent;
                for (var n = node; n !== container; n = n.parent) {
                    if (!n || n.kind === 235 /* SyntaxKind.Block */ || n.kind === 189 /* SyntaxKind.ConditionalType */ && ts.forEachChild(n.extendsType, containsReference)) {
                        return true;
                    }
                }
                return containsReference(node);
            }
            return true;
            function containsReference(node) {
                switch (node.kind) {
                    case 192 /* SyntaxKind.ThisType */:
                        return !!tp.isThisType;
                    case 79 /* SyntaxKind.Identifier */:
                        return !tp.isThisType && ts.isPartOfTypeNode(node) && maybeTypeParameterReference(node) &&
                            getTypeFromTypeNodeWorker(node) === tp; // use worker because we're looking for === equality
                    case 181 /* SyntaxKind.TypeQuery */:
                        return true;
                    case 169 /* SyntaxKind.MethodDeclaration */:
                    case 168 /* SyntaxKind.MethodSignature */:
                        return !node.type && !!node.body ||
                            ts.some(node.typeParameters, containsReference) ||
                            ts.some(node.parameters, containsReference) ||
                            !!node.type && containsReference(node.type);
                }
                return !!ts.forEachChild(node, containsReference);
            }
        }
        function getHomomorphicTypeVariable(type) {
            var constraintType = getConstraintTypeFromMappedType(type);
            if (constraintType.flags & 4194304 /* TypeFlags.Index */) {