Update source files for deprecation at 3.0

Previous macros suggested that from 3.0, we're only allowed to
deprecate things at a major version.  However, there's no policy
stating this, but there is for removal, saying that to remove
something, it must have been deprecated for 5 years, and that removal
can only happen at a major version.

Meanwhile, the semantic versioning rule is that deprecation should
trigger a MINOR version update, which is reflected in the macro names
as of this change.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10364)

test/asn1_decode_test.c

diff --git a/test/asn1_decode_test.c b/test/asn1_decode_test.c
index 81c0f93..b0c031a 100644
--- a/test/asn1_decode_test.c
+++ b/test/asn1_decode_test.c
@@ -28,7 +28,7 @@
     0x02, 0x00                   /* INTEGER tag + length */
 };
 
-#if !OPENSSL_API_3
+#ifndef OPENSSL_NO_DEPRECATED_3_0
 /* LONG case ************************************************************* */
 
 typedef struct {
@@ -162,7 +162,7 @@
 
 int setup_tests(void)
 {
-#if !OPENSSL_API_3
+#ifndef OPENSSL_NO_DEPRECATED_3_0
     ADD_TEST(test_long);
 #endif
     ADD_TEST(test_int32);

test/asn1_encode_test.c

diff --git a/test/asn1_encode_test.c b/test/asn1_encode_test.c
index 64f8f17..4ff8a20 100644
--- a/test/asn1_encode_test.c
+++ b/test/asn1_encode_test.c
@@ -179,7 +179,7 @@
     ENCDEC_DATA(-1, -1),                        \
     ENCDEC_DATA(0, ASN1_LONG_UNDEF)
 
-#if !OPENSSL_API_3
+#ifndef OPENSSL_NO_DEPRECATED_3_0
 /***** LONG ******************************************************************/
 
 typedef struct {
@@ -824,7 +824,7 @@
     return fail == 0;
 }
 
-#if !OPENSSL_API_3
+#ifndef OPENSSL_NO_DEPRECATED_3_0
 static int test_long_32bit(void)
 {
     return test_intern(&long_test_package_32bit);
@@ -858,7 +858,7 @@
 
 int setup_tests(void)
 {
-#if !OPENSSL_API_3
+#ifndef OPENSSL_NO_DEPRECATED_3_0
     ADD_TEST(test_long_32bit);
     ADD_TEST(test_long_64bit);
 #endif

test/igetest.c

diff --git a/test/igetest.c b/test/igetest.c
index a4b8cfa..5a9ebb5 100644
--- a/test/igetest.c
+++ b/test/igetest.c
@@ -15,7 +15,7 @@
 #include "internal/nelem.h"
 #include "testutil.h"
 
-#if !OPENSSL_API_3
+#ifndef OPENSSL_NO_DEPRECATED_3_0
 
 # define TEST_SIZE       128
 # define BIG_TEST_SIZE 10240
@@ -438,7 +438,7 @@
 
 int setup_tests(void)
 {
-#if !OPENSSL_API_3
+#ifndef OPENSSL_NO_DEPRECATED_3_0
     RAND_bytes(rkey, sizeof(rkey));
     RAND_bytes(rkey2, sizeof(rkey2));
     RAND_bytes(plaintext, sizeof(plaintext));