patch 9.0.1077: can add text property with negative ID before virtual textv9.0.1077

Problem:    Can add text property with negative ID before virtual text
            property.
Solution:   Remember that a text property with a negative ID was used and give
            an appropriate error message. (closes #11725)
            Fix index computation.

2 files changed, 16 insertions, 0 deletions

diff --git a/src/testdir/dumps/Test_prop_negative_error_1.dump b/src/testdir/dumps/Test_prop_negative_error_1.dump
new file mode 100644
index 0000000000..47458d81d2
--- /dev/null
+++ b/src/testdir/dumps/Test_prop_negative_error_1.dump
@@ -0,0 +1,8 @@
+>o+0&#ffffff0|n|e| @56
+|t|w|o| @56
+|t+0#ffffff16#ff404010|h|r|e@1| +0#0000000#ffffff0@54
+|~+0#4040ff13&| @58
+|~| @58
+|~| @58
+|~| @58
+| +0#0000000&@41|1|,|1| @10|A|l@1| 
diff --git a/src/testdir/dumps/Test_prop_negative_error_2.dump b/src/testdir/dumps/Test_prop_negative_error_2.dump
new file mode 100644
index 0000000000..188224cd2c
--- /dev/null
+++ b/src/testdir/dumps/Test_prop_negative_error_2.dump
@@ -0,0 +1,8 @@
+|~+0#4040ff13#ffffff0| @58
+|~| @58
+|~| @58
+|E+0#ffffff16#e000002|r@1|o|r| |d|e|t|e|c|t|e|d| |w|h|i|l|e| |p|r|o|c|e|s@1|i|n|g| |f|u|n|c|t|i|o|n| |A|d@1|T|e|x|t|p|r|o|p|:| +0#0000000#ffffff0@6
+|l+0#af5f00255&|i|n|e| @3|5|:| +0#0000000&@49
+|E+0#ffffff16#e000002|1|3@1|9|:| |C|a|n@1|o|t| |a|d@1| |a| |t|e|x|t|p|r|o|p| |w|i|t|h| |t|e|x|t| |a|f|t|e|r| |u|s|i|n|g| |a| |t|e|x|t|p|r|o
+|p| |w|i|t|h| |a| |n|e|g|a|t|i|v|e| |i|d| +0#0000000#ffffff0@39
+|P+0#00e0003&|r|e|s@1| |E|N|T|E|R| |o|r| |t|y|p|e| |c|o|m@1|a|n|d| |t|o| |c|o|n|t|i|n|u|e> +0#0000000&@20