vim-patch:7.4.1105

Problem:    When using slices there is a mixup of variable name and namespace.
Solution:   Recognize variables that can't be a namespace. (Hirohito Higashi)

9bbf63dbf8

test/functional/legacy/eval_spec.lua

@@ -693,4 +693,22 @@ describe('eval', function()
       start:
       6]])
   end)
+
+  it('substring and variable name', function()
+    execute("let str = 'abcdef'")
+    execute('let n = 3')
+    eq('def', eval('str[n:]'))
+    eq('abcd', eval('str[:n]'))
+    eq('d', eval('str[n:n]'))
+    execute('unlet n')
+    execute('let nn = 3')
+    eq('def', eval('str[nn:]'))
+    eq('abcd', eval('str[:nn]'))
+    eq('d', eval('str[nn:nn]'))
+    execute('unlet nn')
+    execute('let b:nn = 4')
+    eq('ef', eval('str[b:nn:]'))
+    eq('abcde', eval('str[:b:nn]'))
+    eq('e', eval('str[b:nn:b:nn]'))
+  end)
 end)