Function inferFromSignature

test/fixtures/snapshot/typescript.js:69051–69061

(source, target, skipParameters)

                }
            }
            function inferFromSignature(source, target, skipParameters) {
                if (!skipParameters) {
                    var saveBivariant = bivariant;
                    var kind = target.declaration ? target.declaration.kind : 0 /* SyntaxKind.Unknown */;
                    // Once we descend into a bivariant signature we remain bivariant for all nested inferences
                    bivariant = bivariant || kind === 169 /* SyntaxKind.MethodDeclaration */ || kind === 168 /* SyntaxKind.MethodSignature */ || kind === 171 /* SyntaxKind.Constructor */;
                    applyToParameterTypes(source, target, inferFromContravariantTypes);
                    bivariant = saveBivariant;
                }
                applyToReturnTypes(source, target, inferFromTypes);
            }
            function inferFromIndexTypes(source, target) {
                // Inferences across mapped type index signatures are pretty much the same a inferences to homomorphic variables
                var priority = (ts.getObjectFlags(source) & ts.getObjectFlags(target) & 32 /* ObjectFlags.Mapped */) ? 8 /* InferencePriority.HomomorphicMappedType */ : 0;