Swift: Test BuiltinLiteralExpr.

Author: geoffw0

swift/ql/test/library-tests/elements/expr/builtinliteralexpr/builtinliteralexpr.expected

@@ -0,0 +1,10 @@
+| builtinliteralexpr.swift:4:6:4:6 | 1 | 1 |
+| builtinliteralexpr.swift:5:6:5:6 | 0xFF | 0xFF |
+| builtinliteralexpr.swift:6:6:6:6 | 2.34 | 2.34 |
+| builtinliteralexpr.swift:7:6:7:6 | true | true |
+| builtinliteralexpr.swift:8:6:8:6 | abc | abc |
+| builtinliteralexpr.swift:9:6:9:6 | \u2872 | \u2872 |
+| builtinliteralexpr.swift:11:7:11:7 | 5 | 5 |
+| builtinliteralexpr.swift:12:7:12:7 | 6 | 6 |
+| builtinliteralexpr.swift:12:10:12:10 | 7 | 7 |
+| builtinliteralexpr.swift:13:6:13:6 | #... |  |

swift/ql/test/library-tests/elements/expr/builtinliteralexpr/builtinliteralexpr.ql

@@ -0,0 +1,5 @@
+import swift
+
+from BuiltinLiteralExpr e
+where e.getFile().getBaseName() != ""
+select e, concat(e.getValueString(), "")

swift/ql/test/library-tests/elements/expr/builtinliteralexpr/builtinliteralexpr.swift

@@ -0,0 +1,14 @@
+
+func test() {
+	// builtin literals
+	_ = 1
+	_ = 0xFF
+	_ = 2.34
+	_ = true
+	_ = "abc"
+	_ = "⡲" // (braille)
+	let maybe: Int? = nil // (no BuiltinLiteralExpr)
+	_ = [5]
+	_ = [6: 7]
+	_ = #line
+}