Demonstrate regression in scala#4949 for positions of quote-inlined code

Author: Blaisorblade

tests/run/i4947e.check

@@ -0,0 +1,7 @@
+assertImpl: Test$.main(Test_2.scala:7)
+true
+assertImpl: Test$.main(Test_2.scala:8)
+false
+assertImpl: Test$.main(Test_2.scala:9)
+hi: Test$.main(Test_2.scala:9)
+false

tests/run/i4947e/Macro_1.scala

@@ -0,0 +1,11 @@
+import scala.quoted._
+
+object Macros {
+  def printStack(tag: String): Unit = {
+    println(tag + ": "+ new Exception().getStackTrace().apply(1))
+  }
+  def assertImpl(expr: Expr[Boolean]) = '{
+    printStack("assertImpl")
+    println(~expr)
+  }
+}

tests/run/i4947e/Test_2.scala

@@ -0,0 +1,11 @@
+object Test {
+
+  rewrite def assert2(expr: => Boolean): Unit =  ~Macros.assertImpl('(expr))
+
+  def main(args: Array[String]): Unit = {
+    val x = 1
+    assert2(x != 0)
+    assert2(x == 0)
+    assert2 { Macros.printStack("hi"); x == 0 }
+  }
+}