To reproduce:
1. Import attached shader "2017.shader" into any project
2. In Project window, select the Shader file
3. In Inspector window, use the drop down arrow to expand shader menu and select one API, say GLES3
4. After the selection is ticked, Compile and show code
5. While in code editor, search for u_xlat0

Expected: shader code is compiled according to shader provided
Actual: compiled shader code's positional transformations differ from shader provided

Reproduced in: 2017.4.26f1, 2018.4.0f1, 2019.1.1f1, 2019.2.0a14, 2019.3.0a1

Note: reproduces on any API selected
Note2: examples of incorrect behavior:

"o.pos.z = -o.pos.z" :
expected "u_xlat0.xyz = u_xlat0.xyz * vec3(1.0, 1.0, -1.0);"
actual: "u_xlat0.xyz = u_xlat0.xyz * vec3(-1.0, 1.0, -1.0);" (x axis should not be inverted)

"o.pos.z = o.pos.z + 1.0":
expected: "u_xlat6 = u_xlat0.z + 1.0;"
" gl_Position.z = u_xlat6"
actual: addressed transformation is not applied to gl_Position.z