Add regression tests from Luke's bug reports. Part 1.

pkg/front_end/test/fasta/strong.status

Index: pkg/front_end/test/fasta/strong.status
diff --git a/pkg/front_end/test/fasta/strong.status b/pkg/front_end/test/fasta/strong.status
index fd965352fe4e664cd31affd96db0ec469c2e172a..405f8388c6973564b97b73c0f75c6ec53351b077 100644
--- a/pkg/front_end/test/fasta/strong.status
+++ b/pkg/front_end/test/fasta/strong.status
@@ -161,3 +161,16 @@ rasta/unresolved_constructor: Fail
 rasta/unresolved_for_in: Fail
 rasta/unresolved_recovery: Fail
 rasta/unsupported_platform_library: Fail
+
+regress/issue_29975: Fail # Issue 29975.
+regress/issue_29976: Crash # Issue 29976.
+regress/issue_29977: Crash # Issue 29977.
+regress/issue_29979: Crash # Issue 29979.
+regress/issue_29981: Crash # Issue 29981.
+regress/issue_29982: Crash # Issue 29982.
+regress/issue_29983: Crash # Issue 29983.
+regress/issue_29984: Crash # Issue 29984.
+regress/issue_29985: Crash # Issue 29985.
+regress/issue_29986: Crash # Issue 29986.
+regress/issue_29986: Crash # Issue 29986.
+regress/issue_29987: Crash # Issue 29987.