Move register allocation unittests and constrain owners

test/unittests/BUILD.gn

Index: test/unittests/BUILD.gn
diff --git a/test/unittests/BUILD.gn b/test/unittests/BUILD.gn
index 48fb75c37c8a73c5fc58f4af31ef650ed185c8c0..0b0d7defc1ccd734b6923977a63efe2b1d95eabc 100644
--- a/test/unittests/BUILD.gn
+++ b/test/unittests/BUILD.gn
@@ -63,13 +63,11 @@ v8_executable("unittests") {
     "compiler/js-typed-lowering-unittest.cc",
     "compiler/linkage-tail-call-unittest.cc",
     "compiler/live-range-builder.h",
-    "compiler/live-range-unittest.cc",
     "compiler/liveness-analyzer-unittest.cc",
     "compiler/load-elimination-unittest.cc",
     "compiler/loop-peeling-unittest.cc",
     "compiler/machine-operator-reducer-unittest.cc",
     "compiler/machine-operator-unittest.cc",
-    "compiler/move-optimizer-unittest.cc",
     "compiler/node-cache-unittest.cc",
     "compiler/node-matchers-unittest.cc",
     "compiler/node-properties-unittest.cc",
@@ -77,7 +75,9 @@ v8_executable("unittests") {
     "compiler/node-test-utils.h",
     "compiler/node-unittest.cc",
     "compiler/opcodes-unittest.cc",
-    "compiler/register-allocator-unittest.cc",
+    "compiler/regalloc/live-range-unittest.cc",
+    "compiler/regalloc/move-optimizer-unittest.cc",
+    "compiler/regalloc/register-allocator-unittest.cc",
     "compiler/schedule-unittest.cc",
     "compiler/scheduler-rpo-unittest.cc",
     "compiler/scheduler-unittest.cc",