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, 4 insertions, 3 deletions

diff --git a/src/test/scala/chiselTests/DataPrint.scala b/src/test/scala/chiselTests/DataPrint.scala
index caf6e159..5f59e6ba 100644
--- a/src/test/scala/chiselTests/DataPrint.scala
+++ b/src/test/scala/chiselTests/DataPrint.scala
@@ -7,6 +7,7 @@ import org.scalatest._
 import chisel3._
 import chisel3.experimental.{ChiselEnum, FixedPoint}
 import chisel3.experimental.BundleLiterals._
+import chisel3.stage.ChiselStage
 import org.scalatest.matchers.should.Matchers
 
 class DataPrintSpec extends ChiselFlatSpec with Matchers {
@@ -20,7 +21,7 @@ class DataPrintSpec extends ChiselFlatSpec with Matchers {
   }
 
   "Data types" should "have a meaningful string representation" in {
-    elaborate { new RawModule {
+    ChiselStage.elaborate { new RawModule {
       UInt().toString should be ("UInt")
       UInt(8.W).toString should be ("UInt<8>")
       SInt(15.W).toString should be ("SInt<15>")
@@ -54,11 +55,11 @@ class DataPrintSpec extends ChiselFlatSpec with Matchers {
   }
 
   "Bound data types" should "have a meaningful string representation" in {
-    elaborate { new BoundDataModule }
+    ChiselStage.elaborate { new BoundDataModule }
   }
 
   "Literals" should "have a meaningful string representation" in {
-    elaborate { new RawModule {
+    ChiselStage.elaborate { new RawModule {
       3.U.toString should be ("UInt<2>(3)")
       3.U(5.W).toString should be ("UInt<5>(3)")
       -1.S.toString should be ("SInt<1>(-1)")