Function tryGiveBetterPrimaryError

test/fixtures/snapshot/typescript.js:79353–79368

(errNode, maybeMissingAwait, leftStr, rightStr)

                }
            }
            function tryGiveBetterPrimaryError(errNode, maybeMissingAwait, leftStr, rightStr) {
                var typeName;
                switch (operatorToken.kind) {
                    case 36 /* SyntaxKind.EqualsEqualsEqualsToken */:
                    case 34 /* SyntaxKind.EqualsEqualsToken */:
                        typeName = "false";
                        break;
                    case 37 /* SyntaxKind.ExclamationEqualsEqualsToken */:
                    case 35 /* SyntaxKind.ExclamationEqualsToken */:
                        typeName = "true";
                }
                if (typeName) {
                    return errorAndMaybeSuggestAwait(errNode, maybeMissingAwait, ts.Diagnostics.This_condition_will_always_return_0_since_the_types_1_and_2_have_no_overlap, typeName, leftStr, rightStr);
                }
                return undefined;
            }
        }
        function getBaseTypesIfUnrelated(leftType, rightType, isRelated) {
            var effectiveLeft = leftType;