Add switch expressions to the sourcemaps readable test.

PiperOrigin-RevId: 697769148

transpiler/javatests/com/google/j2cl/readable/java/sourcemap/SourceMap.java

@@ -127,4 +127,13 @@ enum Enum1 {
 
     Enum1(int i) {}
   }
+
+  private void testSwitchExpression() {
+    int v = 1;
+    int r =
+        switch (v) {
+          case 1, 2 -> 10;
+          default -> 20;
+        };
+  }
 }

transpiler/javatests/com/google/j2cl/readable/java/sourcemap/output_closure/SourceMap.impl.java.js.txt

@@ -100,6 +100,18 @@ class SourceMap extends j_l_Object {
  m_testLocalClass__void_$p_sourcemap_SourceMap() {
   $1LocalClass.$create__sourcemap_SourceMap(this);
  }
+ /** @nodts */
+ m_testSwitchExpression__void_$p_sourcemap_SourceMap() {
+  let v = 1;
+  let r = (() =>{
+   switch (v) {
+    case 1: case 2: 
+     return 10;
+    default: 
+     return 20;
+   }
+  })();
+ }
  //Default method forwarding stub.
  /** @override @nodts @return {Comparator<T>} */
  m_reversed__java_util_Comparator() {

transpiler/javatests/com/google/j2cl/readable/java/sourcemap/output_closure/SourceMap.js.mappings.txt

@@ -115,6 +115,19 @@
 [return 1;] => [return 1;] "sourcemap.SourceMap.simpleMethod"
 [testLocalClass] => [m_testLocalClass__void_$p_sourcemap_SourceMap]
 [new LocalClass();] => [$1LocalClass.$create__sourcemap_SourceMap(this);] "sourcemap.SourceMap.testLocalClass"
+[testSwitchExpression] => [m_testSwitchExpression__void_$p_sourcemap_SourceMap]
+[int v = 1;] => [let v = 1;] "sourcemap.SourceMap.testSwitchExpression"
+[v] => [v] "v"
+[int r =
+        switch (v) {
+...          default -> 20;
+        };] => [let r = (() =>{
+   switch (v) {
+...   }
+  })();] "sourcemap.SourceMap.testSwitchExpression"
+[r] => [r] "r"
+[10;] => [return 10;] "sourcemap.SourceMap.<lambda in testSwitchExpression>"
+[20;] => [return 20;] "sourcemap.SourceMap.<lambda in testSwitchExpression>"
 [SourceMap] => [m_reversed__java_util_Comparator]
 [SourceMap] => [return /**@type {Comparator<T>}*/ (Comparator.m_reversed__$default__java_util_Comparator__java_util_Comparator(this));] "sourcemap.SourceMap.reversed"
 [SourceMap] => [m_thenComparing__java_util_Comparator__java_util_Comparator]