Use ChiselStage in Tests

This migrates the tests to Chisel 3.4/FIRRTL 1.4. This primarily
involves removing usages of deprecated methods including:

- Remove usages of Driver
- Use ChiselStage methods instead of BackendCompilationUtilities
  methods
- Use Dependency API for custom transforms
- Use extractCause to unpack StackError

Signed-off-by: Schuyler Eldridge <schuyler.eldridge@ibm.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/src/test/scala/chiselTests/ModuleExplicitResetSpec.scala b/src/test/scala/chiselTests/ModuleExplicitResetSpec.scala
index af2db95f..184c2bff 100644
--- a/src/test/scala/chiselTests/ModuleExplicitResetSpec.scala
+++ b/src/test/scala/chiselTests/ModuleExplicitResetSpec.scala
@@ -2,6 +2,8 @@
 
 package chiselTests
 
+import chisel3.stage.ChiselStage
+
 class ModuleExplicitResetSpec extends ChiselFlatSpec  {
 
   "A Module with an explicit reset in compatibility mode" should "elaborate" in {
@@ -15,7 +17,7 @@ class ModuleExplicitResetSpec extends ChiselFlatSpec  {
       io.done := false.B
     }
 
-    elaborate {
+    ChiselStage.elaborate {
       new ModuleExplicitReset(myReset)
     }
   }