Function createCanonicalSignature

test/fixtures/snapshot/typescript.js:59974–59982

(signature)

                signature;
        }
        function createCanonicalSignature(signature) {
            // Create an instantiation of the signature where each unconstrained type parameter is replaced with
            // its original. When a generic class or interface is instantiated, each generic method in the class or
            // interface is instantiated with a fresh set of cloned type parameters (which we need to handle scenarios
            // where different generations of the same type parameter are in scope). This leads to a lot of new type
            // identities, and potentially a lot of work comparing those identities, so here we create an instantiation
            // that uses the original type identities for all unconstrained type parameters.
            return getSignatureInstantiation(signature, ts.map(signature.typeParameters, function (tp) { return tp.target && !getConstraintOfTypeParameter(tp.target) ? tp.target : tp; }), ts.isInJSFile(signature.declaration));
        }
        function getBaseSignature(signature) {
            var typeParameters = signature.typeParameters;
            if (typeParameters) {